Title :
Analysis of class AB amplifier in supply modulation of EER transmission systems
Author :
Melamed, Y. ; Spiegel, Solon J.
Author_Institution :
Eng. Sch., Tel Aviv Univ., Tel Aviv, Israel
Abstract :
The analysis and design of class AB amplifier applied to supply modulation of EER transmission systems are presented. It is shown that the gain-bandwidth product and the output resistance of the class AB amplifier must be optimized at a given power consumption to meet the output spectrum requirements. The results show that a unity gain class AB amplifier with close loop bandwidth above 3.5MHz at 5Ω load resistance is required to meet the EDGE output spectrum mask requirements.
Keywords :
3G mobile communication; microwave power amplifiers; modulation; EDGE output spectrum mask; EER transmission systems; class AB amplifier analysis; envelope elimination and restoration system; gain-bandwidth product; power consumption; resistance 5 ohm; supply modulation; EER; Power amplifier; polar transmitters; power control; supply modulation; wireless communication;
Conference_Titel :
Microwaves, Communications, Antennas and Electronics Systems (COMCAS), 2011 IEEE International Conference on
Conference_Location :
Tel Aviv
Print_ISBN :
978-1-4577-1692-8
DOI :
10.1109/COMCAS.2011.6105802
